A157268 as a triangular array
| | | | | | | | | | 1 |
| | | | | | | | | | 1 | | 1 |
| | | | | | | | | 1 | | 6 | | 1 |
| | | | | | | | 1 | | 17 | | 17 | | 1 |
| | | | | | | 1 | | 40 | | 126 | | 40 | | 1 |
| | | | | | 1 | | 87 | | 606 | | 606 | | 87 | | 1 |
| | | | | 1 | | 182 | | 2413 | | 5856 | | 2413 | | 182 | | 1 |
| | | | 1 | | 373 | | 8679 | | 40337 | | 40337 | | 8679 | | 373 | | 1 |
| | | 1 | | 756 | | 29376 | | 232726 | | 497066 | | 232726 | | 29376 | | 756 | | 1 |
| | 1 | | 1523 | | 95668 | | 1205968 | | 4527078 | | 4527078 | | 1205968 | | 95668 | | 1523 | | 1 |
|
A157268 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 6 | 17 | 40 | 87 | 182 | 373 | 756 | 1523
| | 1 | 17 | 126 | 606 | 2413 | 8679 | 29376 | 95668
| | 1 | 40 | 606 | 5856 | 40337 | 232726 | 1205968
| | 1 | 87 | 2413 | 40337 | 497066 | 4527078
| | 1 | 182 | 8679 | 232726 | 4527078
| | 1 | 373 | 29376 | 1205968
| | 1 | 756 | 95668
| | 1 | 1523
| | 1
|
A157268 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 6 | 17 | 40 | 87 | 182 | 373 | 756 | 1523
| | | 1 | 17 | 126 | 606 | 2413 | 8679 | 29376 | 95668
| | | | 1 | 40 | 606 | 5856 | 40337 | 232726 | 1205968
| | | | | 1 | 87 | 2413 | 40337 | 497066 | 4527078
| | | | | | 1 | 182 | 8679 | 232726 | 4527078
| | | | | | | 1 | 373 | 29376 | 1205968
| | | | | | | | 1 | 756 | 95668
| | | | | | | | | 1 | 1523
| | | | | | | | | | 1
|
|
